prussia was a vassal to poland?
Yes - for 172 years
(1469-1641). In 1618 Zygmunt III Waza allowed Prussia
to form a personal union with Brandenburg (first Polish mistake) and in 1657 they got
complete independence from Poland (second Polish mistake, but we were pretty much
forced to do it) for the price of Brandenburg quitting their alliance with Sweden during
the Swedish Potop. This allowed Prussia to form, together with Brandenburg in 1701,
the Kingdom of Prussia.
seriously, what are some of you on?? hmm
Ever heard of Hołdy Pruskie? Prusy Książęce? Prusy Zakonne? Doesn't ring a bell?
I can't believe it - Polish History 101... that's really sad.